Your search for "ridge gourd" revealed the following:
Hair Gourd Seedlings (Pick-up only)
Regular price $5.00Hair Gourd - Short type F1 Hybrid Sowing Time: Mar - May Weight: 450-550g Size: (5-6)cm x (16)cm Hair Gourd...
F1 Wax Gourd Seedlings (Pick-up only)
Regular price $20.00Mini Wax Gourd - Jasmine Wax Gourd 162 Pick up at Clover Nursery or Ocean Park MTR station.